Compressive strength of human openwedges: a selection method
| Autor: | Claude Rumelhart, Hélène Follet, Ana-Maria Sfarghiu, Jacques Peyrot, Maurice Gotteland, Raphaël Bardonnet |
|---|---|
| Přispěvatelé: | Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne] (LaMCoS), Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Indiana University - Purdue University Indianapolis (IUPUI), Indiana University System, Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS), Follet, Helene |
| Jazyk: | angličtina |
| Rok vydání: | 2004 |
| Předmět: |
030222 orthopedics
Materials science Chemical treatment Sample (material) 02 engineering and technology MECHANICAL-PROPERTIES Impact test 021001 nanoscience & nanotechnology Condensed Matter Physics Electronic Optical and Magnetic Materials [SDV.IB.BIO] Life Sciences [q-bio]/Bioengineering/Biomaterials 03 medical and health sciences 0302 clinical medicine Compressive strength CERAMICS Principal component analysis Health safety Cortical surface Selection method 0210 nano-technology BONE [SDV.IB.BIO]Life Sciences [q-bio]/Bioengineering/Biomaterials Instrumentation Biomedical engineering |
| Zdroj: | European Physical Journal: Applied Physics European Physical Journal: Applied Physics, EDP Sciences, 2004, 25 (2), pp.141-148. ⟨10.1051/epjap:2003090⟩ European Physical Journal: Applied Physics, 2004, 25 (2), pp.141-148. ⟨10.1051/epjap:2003090⟩ |
| ISSN: | 1286-0042 1286-0050 |
| DOI: | 10.1051/epjap:2003090⟩ |
| Popis: | A series of 44 samples of bone wedges of human origin, intended for allograft openwedge os- teotomy and obtained without particular precautions during hip arthroplasty were re-examined. After viral inactivity chemical treatment, lyophilisation and radio-sterilisation (intended to produce optimal health safety), the compressive strength, independent of age, sex and the height of the sample (or angle of cut), proved to be too widely dispersed (10−158 MPa) in the first study. We propose a method for selecting samples which takes into account their geometry (width, length, thicknesses, cortical surface area). Statis- tical methods (Principal Components Analysis PCA, Hierarchical Cluster Analysis, Multilinear regression) allowed final selection of 29 samples having a mean compressive strengthmax = 103 MPa ± 26 and with variation (61−158 MPa). These results are equivalent or greater than average materials currently used in openwedge osteotomy. PACS. 87.19.Rr Mechanical properties of tissues and organs - 81.70.Bt Mechanical testing, impact tests, static and dynamic loads |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|